I think we're getting too far in the weeds here. Should I have the right to diagnose the on board computers on my car? I think I do. Do I deserve to know how to troubleshoot the functionality of my car's systems (EFI, ABS, A/C, etc). I think I do. Do I need to know how internally they all work? Probably not.

Claiming that information to diagnose equipment is equivalent to proprietary information used to design equipment is a false equivalence, IMHO.

"We live in a time when intelligent people are being silenced so that stupid people won't be offended".